In a dog show, there will be a gold, a silver, and a bronze medal awarded. there are 5 finalists. in how many different ways can the 3 medals be awarded?

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax